﻿/************************************************************************

   Extended Silverlight Toolkit

   Copyright (C) 2010-2012 Xceed Software Inc.

   This program is provided to you under the terms of the Microsoft Public
   License (Ms-PL) as published at http://extendedsilverlight.codeplex.com/license

   Please purchase a commercial version of this toolkit if you are using
   it in a commercial product. The commercial versions support the project,
   and also include more features for each control, priority support,
   source code, updates, removed watermark, and a proprietary license.

   Visit http://xceed.com and follow @datagrid on Twitter.

  **********************************************************************/

using System;

namespace Xceed.Silverlight.Data
{
  public struct StatQueryParameters
  {
    #region Constructor

    internal StatQueryParameters(
      StatRequest function,
      SortRequest sort, 
      FilterRequest filter,
      FilterGroupRequest filterGroup )
      : this()
    {
      if( function == null )
        throw new ArgumentNullException( "function" );

      // Make sure the filter group request is linked with the sort request.
      if( filterGroup != null )
      {
        int sortedFieldsCount = ( sort != null ) ? sort.SortDescriptions.Count : 0;

        // The filter group request cannot be more precise than the sort request.
        if( sortedFieldsCount < filterGroup.Values.Count )
          throw new DataInternalException();
      }

      this.Function = function;
      this.Sort = sort;
      this.Filter = filter;
      this.FilterGroup = filterGroup;
    }

    #endregion

    #region Function Property

    public StatRequest Function
    {
      get;
      private set;
    }

    #endregion

    #region Sort Property

    public SortRequest Sort
    {
      get;
      private set;
    }

    #endregion

    #region Filter Property

    public FilterRequest Filter
    {
      get;
      private set;
    }

    #endregion

    #region FilterGroup Property

    public FilterGroupRequest FilterGroup
    {
      get;
      private set;
    }

    #endregion
  }
}
